Question

How do you simplify `4\sqrt { 75u ^ { 2} }`?

Answer 1

`20|u| sqrt(3)`

Explanation:

`4sqrt(75u^2)`

`= 4 xx sqrt(3 xx25xxu^2)`

`= 4 xx 5 xx |u| xx sqrt(3)`

`=20|u| xx sqrt(3)`